Sandvik-coromant Threading User Manual Page 111
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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111
0.50 0.34 4
.013 4
1.00 0.63 5
.025 5
1.50 0.92 6
.036 6
1.75 1.05 8
.041 8
2.00 1.20 8
.047 8
2.50 1.48 10
.058 10
19 0.92 6
.036 6
14 1.23 8
.048 8
11 1.54 9
.061 9
16 1.02 6
.040 6
14 1.14 7
.045 7
12 1.30 8
.051 8
10 1.64 10
.065 10
8 1.95 12
.077 12
16 0.70 5
.028 5
14 0.77 5
.030 5
12 0.87 6
.034 6
10 1.13 7
.044 7
8 1.33 8
.052 8
32 0.51 4
.020 4
28 0.58 5
.023 5
24 0.66 5
.026 5
20 0.78 6
.031 6
18 0.86 6
.034 6
16 0.96 7
.038 7
14 1.07 8
.042 8
18 1.11 8
.044 8
14 1.42 10
.056 10
CMC 02.1
MC P2.1.Z.AN
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Extra stock is included in the total infeed 0.05 mm
.002 inch
Reference material
Thread turning infeed recommendations, CoroCut® MB
ISO Metric (MM)
Unit Pitch, mm Total infeed nap
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
Whitworth (WH)
Unit Pitch, t.p.i. Total infeed nap
mm
inch
mm
inch
mm
inch
ACME (AC)
Unit Pitch, t.p.i. Total infeed nap
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
Stub-ACME (AC)
Unit Pitch, t.p.i. Total infeed nap
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
ISO inch (UN)
Unit Pitch, t.p.i. Total infeed nap
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
NPT (NT)
Unit Pitch, t.p.i. Total infeed nap
mm
inch
mm
inch
- Contents 1
- Introduction 2
- 1. Basics in threads 3
- Pitch diameter, d 4
- Helix angle 4
- Thread designations 5
- Tolerance positions 6
- ¼” 20UNC – 2A 7
- ISO - uni ed (UN): 7
- Types of UN thread 7
- ¼” – Major thread diameter 7
- Whitworth pipe threads: 8
- 2. Applications 9
- Thread turning Thread milling 10
- Thread turning 10
- Thread milling 10
- Insert types 11
- Flexibility 12
- Productivity 13
- First choice 15
- Insert geometries 16
- MC CMC Geometries 16
- ISO No. No 16
- Modi ed ank infeed 17
- Radial infeed 18
- Infeed value recommendations 21
- Tool holder selection 22
- External thread turning 23
- Internal thread turning 24
- External Internal 25
- A negative shim must be used 25
- Thread turning methods 25
- Working away from the chuck 25
- Insert clearance angles 26
- = the angle of insert 27
- Modi ed bars for small holes 30
- Multi-start threads 31
- NPT/NPTF UN/MM 32
- Insert tool life 33
- Threading large pro les 33
- Thread deburring 34
- Tooling inventory 36
- Tool breakage 36
- Chip control 36
- Cutting force 37
- Thread quality 37
- Choice of cutting diameter 39
- Tool path 40
- Down milling and up milling 41
- Entrance into cut – roll in 41
- Feed per tooth 42
- Cutting data considerations 43
- Wet or dry machining 43
- Internal thread 44
- External thread 44
- 3. Products 46
- Insert sizes 48
- Geometries 48
- The interface: holder - shim 49
- The interface: shim - insert 49
- Type of insert 50
- Assortment - CoroThread® 266 50
- . Products - thread turnin 51
- 3. Products - thread turnin 54
- – external threading 55
- -C -C-N -N-A -A 56
- Assortment 60
- CoroTurn® SL cutting heads – 63
- Extended offer 64
- Thread Milling 65
- Single-point threading 66
- CoroMill® 327 67
- Assortment - CoroMill® 327 68
- Handling 68
- CoroMill® 328 69
- Easy programming 70
- Cutting data and programming 71
- Assortment - CoroMill® Plura 71
- Grade information 72
- GC1125 73
- GC1020 73
- GC4125 74
- CB7015 74
- GC1105 75
- 4. Troubleshooting 76
- Insert breakage 77
- Built-up edge (BUE) 77
- Abnormal ank wear 78
- Vibration 78
- Poor surface nish 79
- Poor chip control 79
- Shallow pro le 79
- Excessive edge pressure 80
- Incorrect thread pro le 80
- Thermal cracks 82
- Crater wear 82
- Plastic deformation 82
- Flank wear 83
- Re-cutting of chips 84
- Notch wear 84
- Machine inef ciency 85
- Conical threads 85
- 5. Technical reference 86
- CoroTurn® XS 87
- CoroCut® MB 87
- CoroCut® XS 87
- 5. Technical re 88
- Programming 92
- CoroMill® Plura 94
- ISO Metric (MM), external 96
- ISO Metric (MM), internal 97
- ISO inch (UN), external 98
- ISO inch (UN), internal 99
- ACME (AC), external 102
- ACME (AC), internal 103
- MJ, external 106
- UNJ, external 106
- Unit Radial infeed per pass 107
- Multi-point 108
- CoroMill 327, metric 112
- CoroMill 327, inch 112
- 113
- Formulas 114
- Radial clearance 116
- Flank clearance 116
- Thread milling formulas 117
- Internal thread milling 117
- External thread milling 117
- Inch/mm conversion table 118
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